Excellent ride report!
I'm planning a solo trip up to Nordkapp from London in May and I'm debating whether to get the ferry from Estonia to Finland and straight up, or head over into Russia and go via Murmansk. I think you've convinced me to consider the Murmansk route a bit more (has been 'Plan B' for a while).
Your reports so far have answered a bunch of questions I had, but I'm wondering - what sort of fuel range do you think necessary for this sort of trip? My KTM 950SE craps out after about 120 miles and I'm looking into options for carrying more fuel but don't want to overdo it…?